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  <title>Release Notes &raquo; Release 3.1.0 (2021/04/14) | Taskflow QuickStart</title>
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        <h1>
          <span class="m-breadcrumb"><a href="Releases.html">Release Notes</a> &raquo;</span>
          Release 3.1.0 (2021/04/14)
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          <h3>Contents</h3>
          <ul>
            <li><a href="#release-3-1-0_download">Download</a></li>
            <li><a href="#release-3-1-0_system_requirements">System Requirements</a></li>
            <li>
              <a href="#release-3-1-0_new_features">New Features</a>
              <ul>
                <li><a href="#release-3-1-0_taskflow_core">Taskflow Core</a></li>
                <li><a href="#release-3-1-0_cudaflow">cudaFlow</a></li>
                <li><a href="#release-3-1-0_utilities">Utilities</a></li>
                <li><a href="#release-3-1-0_profiler">Taskflow Profiler (TFProf)</a></li>
              </ul>
            </li>
            <li><a href="#release-3-1-0_bug_fixes">Bug Fixes</a></li>
            <li><a href="#release-3-1-0_breaking_changes">Breaking Changes</a></li>
            <li><a href="#release-3-1-0_deprecated_items">Deprecated and Removed Items</a></li>
            <li><a href="#release-3-1-0_documentation">Documentation</a></li>
            <li><a href="#release-3-1-0_miscellaneous_items">Miscellaneous Items</a></li>
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<p>Taskflow 3.1.0 is the 2nd release in the 3.x line! This release includes several new changes such as CPU-GPU tasking, algorithm collection, enhanced web-based profiler, documentation, and unit tests.</p><section id="release-3-1-0_download"><h2><a href="#release-3-1-0_download">Download</a></h2><p>Taskflow 3.1.0 can be downloaded from <a href="https://github.com/taskflow/taskflow/releases/tag/v3.1.0">here</a>.</p></section><section id="release-3-1-0_system_requirements"><h2><a href="#release-3-1-0_system_requirements">System Requirements</a></h2><p>To use Taskflow v3.1.0, you need a compiler that supports C++17:</p><ul><li>GNU C++ Compiler at least v8.4 with -std=c++17</li><li>Clang C++ Compiler at least v6.0 with -std=c++17</li><li>Microsoft Visual Studio at least v19.27 with /std:c++17</li><li>AppleClang Xcode Version at least v12.0 with -std=c++17</li><li>Nvidia CUDA Toolkit and Compiler (nvcc) at least v11.1 with -std=c++17</li><li>Intel C++ Compiler at least v19.0.1 with -std=c++17</li><li>Intel DPC++ Clang Compiler at least v13.0.0 with -std=c++17 and SYCL20</li></ul><p>Taskflow works on Linux, Windows, and Mac OS X.</p></section><section id="release-3-1-0_new_features"><h2><a href="#release-3-1-0_new_features">New Features</a></h2><section id="release-3-1-0_taskflow_core"><h3><a href="#release-3-1-0_taskflow_core">Taskflow Core</a></h3><ul><li>optimized task node storage by using <a href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html" class="m-doc-external">std::<wbr />unique_ptr</a> for semaphores</li><li>merged the execution flow of cudaFlow and cudaFlow capturer</li></ul></section><section id="release-3-1-0_cudaflow"><h3><a href="#release-3-1-0_cudaflow">cudaFlow</a></h3><ul><li>optimized tf::cudaRoundRobinCapturing through an event-pruning heuristic</li><li>optimized the default block size used in cudaFlow algorithms</li><li>added <a href="classtf_1_1cudaFlow.html#aad726dfe21e9719d96c65530a56d9951" class="m-doc">tf::<wbr />cudaFlow::<wbr />clear()</a> to clean up a cudaFlow</li><li>added <a href="classtf_1_1cudaFlow.html#ae6560c27d249af7e4b8b921388f5e1e2" class="m-doc">tf::<wbr />cudaFlow::<wbr />num_tasks()</a> to query the task count in a cudaFlow</li><li>added <a href="classtf_1_1cudaTask.html#afe21933815619b8f51f0efa2706aa16e" class="m-doc">tf::<wbr />cudaTask::<wbr />num_dependents()</a> to query the dependent count in a cudaTask</li><li>added <a href="classtf_1_1cudaFlowCapturer.html#a06f1176b6a5590832f0e09a049f8a622" class="m-doc">tf::<wbr />cudaFlowCapturer::<wbr />clear()</a> to clean up a cudaFlow capturer</li><li>added <a href="classtf_1_1cudaFlowCapturer.html#aeb826786f1580bae1335d94ffbeb7e02" class="m-doc">tf::<wbr />cudaFlowCapturer::<wbr />num_tasks()</a> to query the task count in a cudaFlow capturer</li><li>added <a href="classtf_1_1cudaFlowCapturer.html" class="m-doc">tf::<wbr />cudaFlowCapturer</a> rebind methods:<ul><li>tf::cudaFlowCapturer::rebind_single_task</li><li>tf::cudaFlowCapturer::rebind_for_each</li><li>tf::cudaFlowCapturer::rebind_for_each_index</li><li>tf::cudaFlowCapturer::rebind_transform</li><li>tf::cudaFlowCapturer::rebind_reduce</li><li>tf::cudaFlowCapturer::rebind_uninitialized_reduce</li></ul></li><li>added <a href="classtf_1_1cudaFlow.html" class="m-doc">tf::<wbr />cudaFlow</a> update methods:<ul><li>tf::cudaFlow::update_for_each</li><li>tf::cudaFlow::update_for_each_index</li><li>tf::cudaFlow::update_transform</li><li>tf::cudaFlow::update_reduce</li><li>tf::cudaFlow::update_uninitialized_reduce</li></ul></li><li>added cudaFlow examples:<ul><li>parallel reduction (examples/cuda/cuda_reduce.cu)</li><li>parallel transform (examples/cuda/cuda_transform.cu)</li><li>rebind (examples/cuda/cuda_rebind.cu)</li></ul></li></ul></section><section id="release-3-1-0_utilities"><h3><a href="#release-3-1-0_utilities">Utilities</a></h3><ul><li>resolved the compiler warning in serializer caused by <code>constexpr if</code></li><li>resolved the compiler error of nvcc when parsin variadic namespace</li></ul></section><section id="release-3-1-0_profiler"><h3><a href="#release-3-1-0_profiler">Taskflow Profiler (TFProf)</a></h3><p>No update for TFProf in this release.</p></section></section><section id="release-3-1-0_bug_fixes"><h2><a href="#release-3-1-0_bug_fixes">Bug Fixes</a></h2><ul><li>fixed the macro expansion issue with MSVC on <code>TF_CUDA_CHECK</code></li><li>fixed the serializer compile error (<a href="https://github.com/taskflow/taskflow/issues/288">#288</a>)</li><li>fixed the <a href="classtf_1_1cudaTask.html#a7eab02ec6633a5cf17cc15898db2d648" class="m-doc">tf::<wbr />cudaTask::<wbr />type</a> bug in mixing host and empty task types</li></ul></section><section id="release-3-1-0_breaking_changes"><h2><a href="#release-3-1-0_breaking_changes">Breaking Changes</a></h2><p>There are no breaking changes in this release.</p></section><section id="release-3-1-0_deprecated_items"><h2><a href="#release-3-1-0_deprecated_items">Deprecated and Removed Items</a></h2><p>There are no deprecated or removed items in this release.</p></section><section id="release-3-1-0_documentation"><h2><a href="#release-3-1-0_documentation">Documentation</a></h2><ul><li>added <a href="ExecuteTaskflow.html#QueryTheWorkerID" class="m-doc">Query the Worker ID</a> to the cookbook page <a href="ExecuteTaskflow.html" class="m-doc">Executor</a></li><li>revised update methods in <a href="GPUTaskingcudaFlow.html" class="m-doc">GPU Tasking (cudaFlow)</a></li><li>revised rebind methods in <a href="GPUTaskingcudaFlowCapturer.html" class="m-doc">GPU Tasking (cudaFlowCapturer)</a></li></ul></section><section id="release-3-1-0_miscellaneous_items"><h2><a href="#release-3-1-0_miscellaneous_items">Miscellaneous Items</a></h2><ul><li>removed Circle-CI from the continuous integration</li><li>updated <a href="https://github.com/GrokImageCompression/grok">grok</a> to the user list</li><li>updated <a href="https://github.com/Ravbug/RavEngine">RavEngine</a> to the user list</li><li>updated <a href="https://github.com/erri120/rpgmpacker">RPGMPacker</a> to the user list</li><li>updated <a href="https://github.com/JayXon/Leanify">Leanify</a> to the user list</li></ul></section>
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